M Sir, you need to redo the quiz because there are too many mistakes in it. I've a massive headache completing this quiz. Also, I noticed that you combined the son name with the father name to get the name of the president. Example, son- Herbert Clark Hoover + father- Jessie Hoover to get President Herbert Jessie Clark Hoover. It should just be Herbert Clark Hoover. There seemed to be several answers like this.